The erection system and technology of the joint section of the continuous beam across the high-speed

Abstract

The present invention relates to a system and process for erecting a closure section of a high-speed continuous beam, which comprises a driving part and a supporting part arranged on a pier; the supporting part is used to bear the middle part O of the lower end of a rotating beam; the driving part has one end hinged to the rotating beam through a hinged seat and the other end is hinged to the pier at C, and is used to drive the rotating beam to rotate from a starting position at point A to a closing position at point B; points A, B, and O form a right triangle, point O is at a right angle, and a line connecting points A and B is a hypotenuse; the present invention has a reasonable design, a compact structure, and is easy to use.

Description

Technical Field

[0001] The invention relates to a system and process for erecting a closure section of a high-speed continuous beam. Background Art

[0002] When the high-speed road and railway are closed and connected, a rotating bridge is needed to rotate the bridge horizontally, and a rapid closing is achieved by a flat rotation method, such as a bridge rotating device and a construction method thereof. At present, the turntable mechanism generally uses a gear ring to drive the rotation. Although it realizes uniform rotation, it has many problems, such as large impact force on the teeth during closing, easy tooth breakage, slow rotation speed in the front section, time wasting, large friction resistance during rotation, uneven force, poor flexibility, large rotation resistance, instability, and large joint gap. The joint gap is a horizontal gap, which is prone to resonance, poor thermal expansion effect, and the need to regularly detect thermal expansion. Summary of the invention

[0003] The technical problem to be solved by the present invention is generally to provide a system and process for erecting a joint section of a high-speed continuous beam.

[0004] To solve the above problems, the technical solution adopted by the present invention is:

[0005] A high-speed continuous beam joint section erection assembly, comprising a driving part and a supporting part arranged on a bridge pier;

[0006] The supporting part is used to support the middle part O of the lower end of the rotating beam;

[0007] A driving part, one end of which is hinged to the rotating beam part through the hinged seat part and the other end is hinged to the pier part at C, and is used to drive the rotating beam part to rotate from the starting position at point A to the closing position at point B; points A, B, and O form a right triangle, point O is at the right angle, and the line connecting points A and B is the hypotenuse;

[0008] Point B is between points O and C.

[0009] A system for erecting a closure section of a high-speed continuous beam, comprising a pier portion and a rotating beam portion, wherein an erection assembly is arranged on the pier portion;

[0010] The end face of the swivel beam is a matching inclined plane, the angle between the matching inclined plane and the transverse line of the swivel beam is 45 degrees, and a transverse screw is arranged on the side wall of the matching inclined plane.

[0011] A method for erecting a closure section of a high-speed continuous beam, with the aid of an erection assembly for a closure section of a high-speed continuous beam, performs the following steps: two linear push rods drive a connector A and a connector B to move in corresponding guide grooves through an upper hinge seat, generating a torque to drive a swivel rotating seat to rotate from point A at a starting position to point B at a closing position, and during the rotation, the F of the hinge seat portion Y Gradually decreases, acceleration ay Gradually getting smaller.

[0012] A bridge pier construction process, using a high-speed continuous beam closure section erection system, performs the following steps;

[0013] Step 1: construct the bridge pier, build the assembly for the joint section of the continuous beam across the highway, and hoist the rotating beam onto the rotating seat by a crane;

[0014] Step 2, performing rotation operation;

[0015] Step three, after the rotation, adjust the gap between the two pairs of inclined surfaces according to the amount of thermal expansion and contraction, and tighten them with transverse screws.

[0016] The present invention realizes the variable acceleration rotation of the swivel beam part through the pier part, the driving part and the supporting part, and realizes the expansion by building a swivel supporting platform of the steel structure on the pier. The central seat body is the support, and at least one of the upper magnetic circle and the lower magnetic circle realizes adsorption to lift the supporting part. The linear push rod part is preferred, which can assist the hydraulic part. By setting the transverse line, the matching inclined plane is defined, and the transverse connection is realized by the transverse screw. Its thermal expansion is an oblique extension. As an accessory, the swivel rotating seat is the support, and it has basic components such as connecting head A, connecting head B, central lower turntable, and central positioning column. The L-shaped support is the support, and the upper magnetic ring, the upper flexible connecting piece, the lower magnetic ring, and the lower flexible connecting piece realize flexible support. When the adsorption force of one end is large, the distance between them will be close to each other, so that the other side will also be tilted to realize the whole contact. As the basic parts, the upper hinged seat and the lower hinged seat are convenient for the push rod to pass through the dead point, and the auxiliary push rod is set at an oblique angle. The limit block realizes the limit, and the guide groove improves the process. Compared with previous designs, the present invention has accurate positioning, small impulse, small resistance and low precision requirement.

[0017] The invention has reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the preferred use structure of the swivel beam of the present invention.

[0019] Figure 2 It is a schematic diagram of the improved structure of the swivel beam of the present invention.

[0020] Figure 3 It is a schematic diagram of the rotating principle structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the use structure of the swivel supporting platform of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the swivel rotating seat of the present invention.

[0024] Figure 7 It is a schematic diagram of the opposing inclined surface structure of the present invention.

[0025] Figure 8 It is a schematic diagram of the L-shaped support structure of the present invention.

[0026] Fig. 9 It is a schematic diagram of the opposing inclined surface structure of the present invention.

[0027] Fig.10 It is a schematic diagram of the L-shaped support structure of the present invention.

[0028] Among them: 1. Pier part; 2. Driving part; 3. Support part; 4. Rotating beam part; 5. Articulated seat part; 6. Closing station; 7. Starting station; 8. Rotating supporting platform; 9. Center seat body; 10. Upper magnetic circle; 11. Lower magnetic circle; 12. Linear push rod part; 13. Transverse line; 14. Matching inclined plane; 15. Transverse screw; 16. Rotating seat; 17. Connector A; 18. Connector B; 19. Center lower turntable; 20. Center positioning column; 21. L-shaped support; 22. Upper magnetic ring; 23. Upper flexible connector; 24. Lower magnetic ring; 25. Lower flexible connector; 26. Upper articulated seat; 27. Lower articulated seat; 28. Auxiliary push rod; 29. ​​Limit block; 30. Guide groove. DETAILED DESCRIPTION

[0029] like Figure 1-10 As shown, the assembly for erecting the joint section of the high-speed continuous beam of this embodiment, as a basic structure, generally includes a driving part 2 and a supporting part 3 arranged on the pier part 1, thereby realizing the rotation support and the rotation drive.

[0030] The supporting part 3 is used to support the middle part O of the lower end of the rotating beam part 4; for the convenience of expression, it is modeled and the theoretical expression is clearer.

[0031] Compared with the traditional gear drive, the driving part 2 of the present invention has one end hinged to the swivel beam part 4 through the hinged seat part 5 and the other end hinged to the bridge pier part 1 at C, which is used to drive the swivel beam part 4 to rotate from the starting position 7 at point A to the closing position 6 at point B; points A, B, and O form a right triangle, point O is at the right angle, and the line connecting points A and B is the hypotenuse; point B is between points O and C. The driving part 2 is a plurality of hydraulic cylinder assemblies or electric push rod assemblies; preferably, points O, B, and C are arranged in a collinear manner; a coordinate system is established with the middle point O as the center and points B and O as the X-axis.

[0032] The driving part 2 pulls the hinged seat 5 and forms a pulling moment N pull. The hinged seat 5 is subjected to the resistance f resistance of the rotating beam 4 and forms a load moment M resistance. The hinged seat 5 is subjected to a resultant force F total = F pull - f resistance. F total forms a moment N total. The coordinate component force corresponding to F total is F X ,F Y ;

[0033] During the rotation of the swivel beam 4, the F of the hinge seat 5 Y Gradually decreases, acceleration a y It gradually becomes smaller, thereby reducing the impulse impact when stopping. The early speed is fast, which enables rapid driving, saves time and protects the overall structure.

[0034] The supporting part 3 includes a swivel rotating seat 16 of a U-shaped structure; a central lower turntable 19 is arranged in the lower middle part of the swivel rotating seat 16; this is a conventional mechanism.

[0035] Two guide grooves 30 are provided on the swivel base 16, which are adaptively designed and can also be guide rails or slideways;

[0036] The hinged seat 5 includes a connector A17 and a connector B18 respectively arranged in the corresponding guide grooves 30, which are preferably designed in pairs and have a stable structure.

[0037] A rotating supporting platform 8 is provided on the bridge pier 1; a central seat 9 is provided at the center of the rotating supporting platform 8;

[0038] As another inventive point of the present invention, the magnetic suspension structure designed before needs to ensure that the two magnetic parts are equidistant, the design is strict, and the cost is high. In view of the previous design, the present invention cleverly changes the idea, uses the suction principle, improves the structure, and arranges the upper magnetic circle 10 and the lower magnetic circle 11 in layers on the center seat body 9. The contact friction between the turntables is reduced by magnetic attraction. A center positioning column 20 is arranged at the lower part of the center lower turntable 19, and the center positioning column 20 is adapted to the center seat body 9;

[0039] A plurality of L-shaped supports 21 are distributed around the lower end of the central lower turntable 19, and an upper flexible connector 23 and a lower flexible connector 25 are arranged on the L-shaped support 21; the flexible connector can be a spring, a steel wire rope, a flexible shaft, a universal joint, etc.

[0040] An upper magnetic ring 22 corresponding to the upper magnetic circle 10 is arranged on the upper flexible connecting member 23, and a lower magnetic ring 24 corresponding to the lower magnetic circle 11 is arranged under the lower flexible connecting member 25. The electromagnetic force is used for adjustment. When attracted, the flatness between the two surfaces is automatically adjusted to ensure uniform force.

[0041] As a specific description, the driving part 2 includes a linear push rod part 12 arranged on the rotating supporting platform 8, and the articulated seat part 5 includes an upper articulated seat 26; the push rod can be hydraulic, electric or pneumatic.

[0042] The two ends of the linear push rod portion 12 are respectively connected to the corresponding parts through the upper hinge seat 26 and the lower hinge seat 27;

[0043] The linear push rod portion 12 is hinged to the swivel supporting platform 8 through an auxiliary push rod 28;

[0044] The closing station 6 is provided with a limit block 29 to achieve position determination, and a sensor and the like may be configured.

[0045] The cross-high-speed continuous beam joint section erection system of this embodiment includes a pier portion 1 and a rotating beam portion 4, and an erection component is provided on the pier portion 1 to achieve rotation.

[0046] As an invention point, the end face of the swivel beam 4 is a mating slope 14, and the angle between the mating slope 14 and the transverse line 13 of the swivel beam 4 is 45 degrees. A transverse screw 15 is arranged on the side wall of the mating slope 14. Compared with the traditional state, it can realize oblique thermal expansion, reduce resonance, run smoothly, and avoid the wheels passing through the gap at the same time.

[0047] As a general accessory, the erection components are equipped with conventional parts such as pump stations and circuit systems.

[0048] like Figure 1-10 The method for erecting the joint section of a high-speed continuous beam in this embodiment performs the following steps with the aid of an erection assembly for the joint section of a high-speed continuous beam; the two linear push rod parts 12 drive the connector A17 and the connector B18 to move in the corresponding guide groove 30 through the upper articulated seat 26, generating a torque to drive the swivel seat 16 to rotate from point A of the starting station 7 to point B of the closing station 6. During the rotation, the FY of the articulated seat part 5 gradually decreases, and the acceleration ay gradually decreases.

[0049] When reaching point B of the closing station 6, the auxiliary push rod 28 drives points B, O, and C to be collinear;

[0050] During the rotation, the lower surface of the upper magnetic ring 10 and the upper surface of the upper magnetic ring 22 are electromagnetically attracted, and the upper surface of the lower magnetic ring 11 and the lower surface of the lower magnetic ring 24 are electromagnetically repelled.

[0051] The bridge pier construction process of this embodiment, with the aid of a high-speed continuous beam closure section erection system, performs the following steps:

[0052] Step 1: construct the bridge pier 1, build the assembly for the cross-high-speed continuous beam joint section, and hoist the swivel beam 4 onto the swivel rotating seat 16 by a crane;

[0053] Step 2, performing rotation operation;

[0054] Step three, after the rotation, adjust the gap between the two matching inclined surfaces 14 according to the thermal expansion and contraction, and tighten them with the transverse screw 15.

[0055] The preferred construction precautions of the present invention are: ① When installing the construction hanger, the construction must be carried out according to the design requirements of the hanger structure installation, and the structural parts of the beam body should be installed symmetrically at the same time in the transverse direction to ensure the safety of the hanger installation construction. ② In addition to complying with the relevant provisions of the current standards for the design and installation of the formwork, the overlap length between the joint beam section formwork and the surface of the two cantilever end beams should not be less than 30 cm, and the overlap joints must be tight and firm. Elastic rubber strips should be installed in the overlap joints to prevent leakage when vibrating the concrete. Attached concrete vibrators and other construction loads should be arranged symmetrically and evenly. ③ The welding quality should be ensured when welding various parts of the hanger. ④ The precision-rolled threaded steel should be covered with rubber sleeves, and double nuts should be installed on the ends. ⑤ The bottom mold system needs to be statically preloaded, and the preload load is 1.2 times the maximum construction load, and is loaded in three stages (60%, 100%, 120%).

[0056] The present invention is fully described for a clearer disclosure, and the prior art is not listed one by one.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents; it is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A component for erecting the joint section of a high-speed continuous beam. Features: It comprises a driving part (2) and a supporting part (3) arranged on a bridge pier part (1); The supporting portion (3) is used to support the middle portion O of the lower end of the rotating beam portion (4); A driving part (2), one end of which is hinged to the rotating beam part (4) through the hinged seat part (5) and the other end of which is hinged to the pier part (1) at C, and is used to drive the rotating beam part (4) to rotate from the starting position (7) at point A to the closing position (6) at point B; points A, B, and O form a right triangle, point O is at the right angle, and the line connecting points A and B is the hypotenuse; Point B is located between points O and C and crosses the high speed; the driving part (2) is a plurality of hydraulic cylinder assemblies or electric push rod assemblies; Points O, B, and C are set on a collinear basis; Establish a coordinate system with the middle point O as the center and points B and O as the X-axis; The driving part (2) pulls the hinged seat part (5) and forms a pulling torque N 拉 The hinged seat (5) is subjected to the resistance f of the rotating beam (4). 阻 And form load moment M 阻 , the hinged seat (5) is subjected to a force F 合 =F 拉 -f 阻 , F 合 Formed torque N 合 , F 合 The corresponding coordinate force component is F X ,F Y ; During the rotation of the swivel beam portion (4), the F of the hinged seat portion (5) Y Gradually decreases, acceleration a y gradually become smaller; The supporting part (3) comprises a swivel rotating seat (16) of a U-shaped structure; Two guide grooves (30) are provided on the swivel rotating seat (16); The hinged seat (5) comprises a connector A (17) and a connector B (18) respectively arranged in corresponding guide grooves (30); The driving part (2) includes a linear push rod part (12) arranged on the rotating supporting platform (8), and the hinge seat part (5) includes an upper hinge seat (26); The two ends of the linear push rod portion (12) are respectively connected to corresponding parts through an upper hinge seat (26) and a lower hinge seat (27); The linear push rod portion (12) is hingedly connected to the rotating support platform (8) via an auxiliary push rod (28).

2. The assembly for erecting the closure section of a high-speed continuous beam according to claim 1, Features: A central lower turntable (19) is arranged at the lower middle portion of the turntable rotating seat (16).

3. The assembly for erecting the closure section of a high-speed continuous beam according to claim 2, Features: A rotating supporting platform (8) is provided on the bridge pier portion (1); and a central seat (9) is provided at the center of the rotating supporting platform (8).

4. The assembly for erecting the closure section of a high-speed continuous beam according to claim 1, Features: The closing station (6) is provided with a limit block (29).

5. A system for erecting the joint section of a continuous beam across a high-speed highway. Features: It comprises a pier part (1) and a rotating beam part (4), and the pier part (1) is provided with the erection assembly according to claim 1; The end surface of the swivel beam portion (4) is a matching inclined surface (14), the matching inclined surface (14) has an angle of 45 degrees relative to a transverse line (13) of the swivel beam portion (4), and a transverse screw rod (15) is arranged on the side wall of the matching inclined surface (14).

6. The system for erecting the closure section of a high-speed continuous beam according to claim 5, Features: The erection components are equipped with a pump station and circuit system.

7. A method for erecting a joint section of a continuous beam across a high-speed highway. Features: With the aid of the assembly for erecting the closure section of a high-speed continuous beam as described in claim 1, the following steps are performed: two linear push rod parts (12) drive the connector A (17) and the connector B (18) to move in the corresponding guide groove (30) through the upper hinge seat (26), thereby generating a torque to drive the swivel rotating seat (16) to rotate from point A of the starting position (7) to point B of the closing position (6). During the rotation, the F of the hinge seat part (5) Y Gradually decreases, acceleration a y Gradually getting smaller.

8. The method for erecting the joint section of a continuous beam across a high-speed highway according to claim 7, Features: in, An upper magnetic ring (10) and a lower magnetic ring (11) are arranged in layers on the center seat body (9), and a center positioning column (20) is arranged at the lower part of the center lower turntable (19), and the center positioning column (20) is adapted to the center seat body (9); A plurality of L-shaped supports (21) are distributed around the lower end of the central lower turntable (19), and an upper flexible connector (23) and a lower flexible connector (25) are provided on the L-shaped supports (21); An upper magnetic ring (22) corresponding to the upper magnetic ring (10) is arranged on the upper flexible connecting member (23), and a lower magnetic ring (24) corresponding to the lower magnetic ring (11) is arranged under the lower flexible connecting member (25); When reaching point B of the closing station (6), the auxiliary push rod (28) drives points B, O, and C to be collinear; During rotation, the lower surface of the upper magnetic ring (10) and the upper surface of the upper magnetic ring (22) are electromagnetically attracted, and the upper surface of the lower magnetic ring (11) and the lower surface of the lower magnetic ring (24) are electromagnetically repelled.

9. A bridge pier construction process, Features: By means of the system for erecting the closure section of a high-speed continuous beam according to claim 5, the following steps are performed; Step 1: construct the bridge pier part (1), build the assembly for erecting the cross-high-speed continuous beam joint section, and hoist the rotating beam part (4) onto the rotating rotating seat (16) by a crane; Step 2, performing rotation operation; Step 3: After the rotation, the gap between the two pairs of inclined surfaces (14) is adjusted according to the amount of thermal expansion and contraction, and they are tightened by means of a transverse screw (15).

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